Improvement in lamp-chimneys



E. HONERJAEGER.

LAMP-CHIMNEY. N0.179,310. v Patented June 27,1876.

NPEIERS, PHOTO-ILITHOGRAPMER, WASHINGTON. D, C.

UNITED STATES PATENT EMIL HONERJAEGER, OF VVATERTOWN, WISCONSIN.

IMPROVEMENT IN LAMP-CHIMNEYS.

Specification forming part of Letters Patent No. 179,310, dated June 27, 1876 application filed June 6, 1876.

To all whom it may concern:

Be it known that I, EMIL HONERJAEGER, of Watertown, in the county of J efi'erson and State of Wisconsin, have invented a new and useful Improvementin Mica Lamp Chimney, of which the following is a specification:

Figure 1 is a side view of my improved lamp-chimney. Fig. 2 is a cross-section of the same, taken through the line mp0, Fig. 1.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish an improved lamp-chimney that will not break with changes of temperature, a draft ofair, or a drop of water, and which may be readily cleaned.

The invention consists in an improved lampchimney formed of the brass frame, having the inner edges of its top, bottom, and side strips scalloped, the sheet of mica, and the metal top piece, constructed and combined as hereinafter fully described.

A is a frame, formed of a piece oflight sheet-' bottom strips 61? a are formed small scallops, which are bent out and in alternately, to form grooves to receive the top and bottom edges of a rectangular sheet, B, of mica. The

inner edges of the side strips a have wider scallops formed in them, which are bent out and in to form grooves to receive the side edges of the sheet B of mica. The outer edges of the side strips to are seamed together, as shown in Fig. 2.

To the outer edge of the top strip a is sea-med a piece, 0, of sheet-brass, cut into such a shape that when its lower edge is seamed to the strip a and its side edges are seamed together, it may have the form of a truncated cone.

With this construction the sheet B of mica will be held securely in place, and may bereadily cleaned, and should the mica become injured it may be readily removed and replaced with a new sheet by bending out the outer scallops of the brass frame A.

Having thus described my invention, I claim as new and desire to secure by Letters .Patent An improved lampchimney, formed of the brass frame 'A, having the inner edges of its top, bottom, and side strips scalloped, the sheet B of mica, and thetop piece 0, constructed and combined substantially as herein shown and described.

EMIL HONERJAEGER. Witnesses:

H. A. WEDEMEYR, AUGUST BENKENDORF. 

